Safeguarding sensitive information is not optional; it's necessary, and expected. For organizations of any size (and individuals for that matter), data security is foundational to maintaining trust, protecting intellectual property, and ensuring compliance with auditing and regulation standards. Among the many risks in data security, three terms often appear: data exfiltration, data theft, and data leaks. While each involves the unauthorized release of information, they have unique characteristics and implications for an organization's security strategy. Let’s clearly define the differences, explore the causes, and outline preventive strategies using data monitoring, leak prevention, deterrence, and mitigation.